478791 has 20 divisors (see below), whose sum is σ = 749232. Its totient is φ = 304128.

The previous prime is 478787. The next prime is 478801. The reversal of 478791 is 197874.

478791 is nontrivially palindromic in base 16.

478791 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 478791 - 2² = 478787 is a prime.

478791 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1735 + ... + 1991.

2⁴⁷⁸⁷⁹¹ is an apocalyptic number.

478791 is a deficient number, since it is larger than the sum of its proper divisors (270441).

478791 is a wasteful number, since it uses less digits than its factorization.

478791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 283 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 478791 is about 691.9472523249. The cubic root of 478791 is about 78.2315604017.

The spelling of 478791 in words is "four hundred seventy-eight thousand, seven hundred ninety-one".